Earlham is a city in Madison County, Iowa, United States. The population was 1,450 at the 2010 census. It is part of the Des Moines–West Des Moines Metropolitan Statistical Area.
Earlham was laid out in 1869 when the railroad was extended to that point. It was named after Earlham College, a Quaker college in Richmond, Indiana. Earlham was incorporated on April 26, 1870.
Earlham is located at 41°29′35″N 94°7′25″W (41.493137, -94.123661).
According to the United States Census Bureau, the city has a total area of 0.97 square miles (2.51 km2), all of it land.
As of the census of 2010, there were 1,450 people, 544 households, and 389 families living in the city. The population density was 1,494.8 inhabitants per square mile (577.1/km2). There were 571 housing units at an average density of 588.7 per square mile (227.3/km2). The racial makeup of the city was 98.3% White, 0.1% African American, 0.5% Asian, 0.2% from other races, and 0.9% from two or more races. Hispanic or Latino of any race were 0.8% of the population.